Crest audio PL3301 SPECIFICATIONS

Product Description

The Crest Audio PL3301 professional power amplifier is
designed to achieve unsurpassed sonic performance and long­term reliability—even when operating under extreme stress—in
touring or fixed installation applications.

Absolute sonic accuracy is the hallmark of every Crest amplifier.
Bass is solid and defined to the limits of audibility, with ample
current reserves delivered by an “over-engineered” power supply
and advanced Class AB output circuit design. Wide-bandwidth
output devices assure detailed, transparent high frequency
response.

Construction and Quality Control

The PL3301 is built exclusively in Crest’s own USA manufactur­ing facility, with internal components selected for premium qual­ity and proven durability. Each modular subassembly is pre-test­ed, and the assembled PL3301 receives a rigorous “hot room”
burn-in before thorough final checkout on precision test equip­ment.

PL3301 Features

• Crest’s legendary “overbuilt” power supply

• Toroidal power transformer

• Latest generation of high-speed, wide-bandwidth output
devices

• Twin tunnel cooling with back-to-front air flow

• Dual, variable speed DC fans

• Massive, extruded aluminum heat sinks

• Balanced XLR and 1/4-inch (TRS) inputs

• 5-Way Binding Post Outputs

• Stereo/parallel/bridged mono mode selector switch

• Ground lift switch

•

TourClass

®

protection circuits:

- ACL (Active Clip Limiting) prevents speaker damage with
gentle gain reduction at clip threshold.

- IGM (Instantaneous Gain Modulation) monitors speaker
loads to detect conditions that may overstress output
devices.

- AutoRamp gradually increases gain to attenuator setting
level when amplifier is turned on.

- TourClass also includes comprehensive thermal manage­ment, and short circuit, DC voltage, turn-on/off transient,
current inrush and sub/ultrasonic input protection.

• Input sensitivity selection

• Recessed, stepped attenuators

• Front panel circuit breaker switch

• Modular construction

• Three-year warranty

PL3301

POWER AMPLIFIER

Power Specifications 8 Ohms Stereo 4 Ohms Stereo 8 Ohms Bridged

1kHz, 0.01% THD+N 160W 250W 500W
20Hz-20kHz, 0.1% THD+N 150W 200W 450W

Figures are watts per channel, both channels driven.

4Ω Stereo PL4601 PL6001 PL7001 PL8001 PL9001

1kHz, .01% THD+N 435W 600W 900W 1200W 1800W
20Hz-20kHz, 0.1% THD+N 400W 500W 800W 1100W 1700W

Power Specifications:
Other PL Series Power Amplifiers

Crest Audio Inc.

100 Eisenhower Dr., Paramus NJ 07652 USA

TEL: [phone] FAX: [phone]

http://www.crestaudio.com

Power figures are watts per channel, both channels driven. Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification.

©1997 Crest Audio Inc.

v. 1.2 3/5/98

PL3301 POWER AMPLIFIER

SPECIFICATIONS

Rear View

1kHz, 0.01% THD+N 20Hz-20kHz, 0.1% THD+N

160W 150W
250W 200W
500W 450W
44V
62V
20Hz-20kHz, -3dB@135kHz
20Hz-20kHz, -.9dB/+.15dB
ACL, IGM, AutoRamp, short circuit, DC voltage,
turn-on/off transient, current inrush, sub/ultrasonic input.
<0.01%
<0.01%
368:1
> - 60dB

0.775V standard (see table below)
X45 standard (see table below)
>20kΩ/>10kΩ

-105dB
> - 60dB
AB
Female XLR (pin 2+, dealer config. for pin 3+), TRS (tip+)
5-way output binding posts
20,000

µF

100V-240V, 50-60Hz

1.2A

3.25A

5.5A

9.0A
1119 BTU/hr
1607 BTU/hr
Back-to-front via 2 rear panel mounted variable-speed DC fans
(filters removable without tools)
Front Panel: 2 attenuators
Rear Panel: signal ground lift switch, mode select switch
Clip/Limit, Signal, Temp/DC, Active
Steel chassis, 16 gauge. Double thickness in rack ear areas.

3.5" x 19" x 17.85" / 89 x 483 x 454mm
38 lbs. / 17.25 kg., 33 lbs. / 14.98 kg.
3 years, parts & labor

8Ω Stereo Power
4Ω Stereo Power

8Ω Bridged Mono Power

Max RMS Output Voltage

(each channel)

Peak Output Voltage (each channel)

Frequency Response (+0 / -0.3dB, 1W/8Ω)

Power Bandwidth (rated power at 4Ω, 1% THD+N)

TourClass®Protection

THD+N

(rated power at 4Ω, 1kHz)

SMPTE IMD (rated power at 8Ω, 60Hz & 7kHz)

Damping Factor (10-400Hz at 8Ω)

Input CMRR (1kHz)

Input Sensitivity (rated power at 8Ω )

Voltage Gain

Input Impedance (balanced/unbalanced)

Hum and Noise

(“A” weighted, full power, 4Ω)

Crosstalk (“A” weighted, full power, 4Ω)

Class

Input Connectors

(per channel)

Output Connectors (per channel)

Filter Storage

Power Supply

(factory configured)

Idle Current Draw 120V

1/8 Power Curr. Draw

(typical music, 120V/4Ω)

1/3 Power Curr. Draw (continuous music, 120V/4Ω)

Max Curr. Draw (circuit breaker rating, 120V/4Ω)

Thermal Emissions (1/8 Power, 4Ω)
Thermal Emissions (1/3 Power, 4Ω)

Cooling

Controls

LED Indicators

(per channel)

Construction

Dimensions

(Height x Width x Depth)

Gross Weight, Net Weight

Warranty

Gain Sens

Dealer-Configurable Gain/Sensitivity Options Factory Standard X45 .775V

Option 1 X40 .866V
Option 2 X20 1.73V

Architect’s & Engineer’s Specifications

The power amplifier shall have two channels. At 8 ohms, 20Hz

- 20kHz, 0.1% THD, it shall deliver a minimum of 150 watts
per channel. At 4 ohms, 20Hz - 20kHz, 0.1% THD, it shall
deliver a minimum of 200 watts per channel. In bridged mono
mode with an 8 ohm load, 20Hz - 20kHz, 0.1% THD, it shall
deliver a minimum of 450 watts.
The amplifier shall have circuitry to protect itself from output
short circuits, thermal overload or other adverse load condi­tions. The amplifier shall protect speaker loads from DC volt­age on outputs. The amplifier shall have active clip limiting
and impedance sensing circuitry. Output relays shall protect
the speakers from amplifier failure.
Two rear panel mounted variable speed DC fans (filters
detachable without tools) shall provide back to front air flow
through the chassis.
Each channel shall have a standard (factory-set) input sensitiv­ity of 0.775 Volts, and shall be fitted with an internal jumper
which allows the gain to be altered to X20 or X40. The hum
and noise level shall be 105 dB below rated output, “A”
weighted. SMPTE IMD shall be less than 0.01% at rated
power, 60Hz and 7kHz. The amplifier shall have a class AB
output stage. The frequency response shall be 20Hz-20kHz,
+0, -0.3dB (1W/8Ω).
The amplifier will operate at 100V-240V, 50-60 Hz AC (config­ured at factory). Maximum current draw shall not exceed 9
amperes at 120VAC (limited by front panel breaker for bench
tests).
Front panel indicators shall include Active, Protect, Signal,
and Clip LED’s for each channel. Front panel attenuators
shall be recessed and detented.
Rear panel input connectors shall be female TRS and XLR
type, internally dealer-configurable for pin 2 (factory setting)
or pin 3 positive. Output terminations shall be 5-way output
binding posts. A ground lift switch and a Stereo/
Parallel/Bridged Mono mode operation switch shall be provid­ed.
A rear-panel IEC AC mains socket (with power cord) or single
AC mains cord having an appropriate AC plug for the intended
operating voltage shall be provided (market dependent).
The packaging of the amplifier shall allow for standard rack
mounting without requiring space between similar units.
Optional rack mount handles will be available. Dimensions
shall be 19" (483mm) wide, 3.5" (89mm) high and 17.85"
(454mm) deep. The amplifier shall weigh 33 lbs. (14.98 kg)
net, and shall be designated the Crest Audio model PL3301.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR

WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT

EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC

ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á

L'HUMIDITÉ

A

+
+

A
B

+

B

A

AB

A

A

B

A

B

B

A

A

•

•

+

••

B

Designed & manufactured in the USA by:

Crest Audio Inc.

100 Eisenhower Dr.

Paramus, New Jersey 07652 USA

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